T&G panels are ideal for the sub-floor construction of residential single and multi family houses as well as light commercial construction and modular mobile homes. In addition to the visible surface flooring material—the carpet, tile, or hardwood—there is usually an underlayment, and beneath that is a subfloor that serves as the foundation and structural reinforcement for the floor. But OSB also takes a longer time to dry out, giving the trapped moisture more time to degrade the material than a quick-drying plywood subfloor. OSB, sometimes called chipboard, is composed of large flat flakes of wood arranged in many layers and sealed together with phenolic resins to make sheets. 5/8 Cat PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. x … They may or may not use glue as well; depends on the crew. The second method is to loose-lay one layer of 3/4 -inch plywood cut into 16-inch planks perpendicularly or diagonally to the direction of the flooring. As a slightly more flexible material, OSB may flex underfoot when installed under carpet or sheet vinyl, but it is almost never noticed with ceramic tile or wood flooring. Plus, DryGuard comes with a 200-day no-sand warranty. Over 25 years ago we pioneered the manufacture of enhanced subfloor panels, and as technology progressed, our scientists kept pace to deliver a new benchmark in performance: a panel that is tough, highly resistant to weather, and engineered to save you time and money with our easy-fit T&G edges. x 2 ft. x 4 ft.; Actual: 0.435 in. Oriented Strand Board, R+ Insulated Subfloor Panel 1 in. A well-installed subfloor should last as long as the house itself, but OSB is slightly more flexible than plywood, so it is not the best choice under heavy flooring like ceramic or stone tile. OSB costs $3 to $5 less per panel when compared to plywood, so the cost savings when building an entire house is significant. Thicknesses for products used for subfloors are generally 23/32 inch (just under 3/4 inch), but thicker sheets are available where building codes call for them. Because it makes use of leftover wood material, OSB tends to be cheaper than plywood, and it is more uniform, since it has none of the knots and other defects that may be present in plywood. Oriented Strand Board, T&G Oriented Strand Board (Common: 23/32 in. 4 ft. x 8 ft. T&G Premium Subflooring, 7/16 in. 2x10 FJ there now. Any recommendations for type of screws ? SDS. Subfloor sheets for both OSB and plywood come in 4 x 8 or 4 x 12 sheets. Select an approved adhesive for sub-flooring that is strong enough to keep its bond over the lifetime of the floor and elastic enough to allow for settling in the panels and joists. Specialty Panel. x 23.75 in. Model #90006. In the 1950s, this material quickly replaced solid wood planking as a subfloor material in homes. virtually impossible to fix a poor quality material or a low budget install. Although it's very unlikely that the subfloor material will be noticed, a plywood subfloor may be preferred by a few prospective homeowners. x 47.75 in. Standard plywood can be used for subfloors, but it is more common to use tongue-and-groove sheets that interlock along the edges. Since the subfloor is entirely hidden, neither material is visible, except from the unfinished space beneath the floor. Use OSB panels rated for the distance between the floor joists. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts), Building Supply Product Type: OSB Panel/Sheathing/Subflooring, Oriented Strand Board (Common: 7/16 in. Plywood is available in the same sizes as OSB. Item #67970. OSB (oriented strand board) is a different form of sheet material. DryGuard® enhanced OSB Sturd-I-Floor® is a multi-layered, moisture resistant sub-floor with built-in protection from thickness and edge swell. Plywood is roughly 10 percent stiffer over the span between joists, so it may flex less underfoot than OSB. However, the difference is not very significant, and the cost-saving offered by OSB makes it a perfectly acceptable subfloor material in most situations. ), 23/32 in. These numbers indicate the diameter or thickness of the screws. Plywood and OSB come in 4 x 8-foot sheets that are typically 3/4 inch thick. These flat chips are clearly visible when the sheet is viewed from above, and it is clear that OSB is not a sheet of solid wood. Limit 90 per order. Thicknesses for products used for subfloors are generally 23/32 inch (just under 3/4 inch), but thicker sheets are available where building codes call for them. Model #00021. Plywood subfloors should last as long as the house itself. The standard subfloor for joists spaced up to 16 inches apart is 23/32-inch T & G sheets. x 8ft. OSB (oriented strand board) is made from large, flat chips arranged in as many as 50 layers, which are adhered together with glues and pressed into sheets. Plywood is made by gluing together multiple thin layers of solid wood at 90-degree angles and pressing them tightly as the glue dries to form a very strong structural sheet. If you are using 3/4-inch Sturd-I-Floor plywood, … To avoid nail pops, pullouts, and shiners (nails that barely hit the joist), all of which … TechShield Radiant Barrier Sheathing 15/32 CAT PS2-10 Radiant OSB, Application as 4 x 8. Where the panels are glued down, OSB also has slightly less holding power with construction adhesives. DRICORE R+ Insulated Subfloor Panel 1 in. Plywood has a slightly greater capacity for absorbing water, but it also dries out faster. What Is Cement Backer Board and How Is It Used? A plywood subfloor generally uses 1/2-inch to 3/4-inch-thick sheets of plywood that have one rough side (which faces down) and one smooth side, which faces up. x 8 in. The subfloor is always a structural layer of sheet good material—usually plywood or OSB, or occasionally particleboard. All Rights Reserved. OSB comes in the same sizes as plywood subfloor sheets. Spruce Square Edge Oriented Strand Board, 7/16 in. As subfloor materials, both plywood and OSB should last as long as the house itself if the subfloor has been properly installed. x 4 ft. x 8 ft. Tongue-and-Groove Aspen OSB Underlayment Panel, 7/16 in. Grip Rite grey ext deck screws work but the point doesn't start well in osb. (171) Model# 15114 $ 9 27. OSB has untreated edges that are somewhat more susceptible to swelling if they get wet. No care and cleaning necessary; this is a hidden building material. These panels feature a built-in underlayment that allows the convenience of using only Sturd-I-Floor under certain finish flooring, especially carpet and pad. For 19/32-inch-thick panels, the joists should be 20 inches on center. C. Both CD EXPOSURE 1 plywood and OSB Exposure 1 subfloor panels are appropriate subflooring materials, but the proper thickness of the material will be determined by the At a major home improvement center, a 4 x 8-foot sheet of 23/32-inch OSB costs about $16.50. Need Help? Some local codes may require 1-inch thick sheets for joists up to 24 inches apart; for these, you may need to buy from a construction lumber yard since general home-improvement centers may not stock them. Sub-floor adhesives prevent uneven and squeaky floors. The terms underlayment and subfloor are often used interchangeably, but they are actually separate layers. The rest use 2-3/8" air nails (clipped or FRH, depending on what kind of guns they run). Have to put down about 15 sheets 3/4" OSB. x 2 ft. x 2 ft. The recommended thickness of the plywood subfloor is governed by the spacing of the joists. This panel delivers a solid, stable floor and easy to install with tongue and groove edge. x 48 in. and even below the underlayment, in some cases. How to Strengthen Floor Joists Before Finishing an Attic. x 23.75 in. x 2 ft. x 2 ft. Improper nailing. x 8 ft. OSB TechShield Radiant Barrier, Advantech 23/32 in. x 48 in. However, very few people are able to recognize this. Rarely, a prospective homeowner may recognize that OSB is the cheaper subfloor material. Use of this site is subject to certain Terms Of Use. OSB SUBFLOORS UNDER HARDWOOD FLOORINGOSB Subfloors Under Hardwood FlooringOriented Strand Board (OSB) is an engineered structural wood panel primarily used for floors, walls and roofs. As a subfloor under solid hardwood, engineered hardwood and laminated flooring, OSB provides an enduring, rigid platform. for pricing and availability. Item #193552 Model #31122.031122.0 Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. The sheets are anchored to the joists with nails or screws driven 6 inches apart, and they are secured to joists across the "field" of each sheet with screws or nails driven every 8 inches. Both subfloor materials are installed the same way. Costs aside, plywood is still rightly considered a slightly superior material to use as a subfloor, thanks to its superior structural strength. Because plywood is the stronger material, very observant home buyers may place a small premium on plywood subfloors. There is no maintenance required, except to keep the subfloor as dry as possible. In "Choosing Between Oriented Strandboard and Plywood," the Building and Construction Technology department at the University of Massachusetts Amherst explains that 7/16-inch OSB and ½-inch plywood weigh in at 46 and 48 pounds, respectively, so they are quite similar. OSB is slightly more resistant to water, but it tends to absorb and hold it longer once it gets wet. OSB subfloor panels have tongue-and-groove edges that fit together and significantly reduce flex in the floor. The panels should be staggered every 2 feet and spaced 1/8 inch between ends. The Spruce uses cookies to provide you with a great user experience. When it comes to selecting the support for your finished floors, typical plywood and traditional commodity oriented strand board (OSB) subflooring satisfy minimum standards in current building codes. But by using high-performance materials in critical unseen places, builders and their clients can improve long-term flooring performance. OSB subfloor is mostly serving as a base under the finish floor (hardwood, engineered wood, vinyl tile, etc.) Oriented strand board has many flat wood chips glued up together in a solid sheet. 3/4 4x8 Oriented Strand Board Tongue and Groove 23/32 TruFlor 4 in. The few hand nailers left generally use 2½" ring-shank. This high-performance sub-floor is designed to help you avoid costly and time-consuming joint sanding. When you’re installing an interior subfloor using 3/4-inch plywood, you’re going to want screws that are labeled #8, #10, or #12. To read PDF files, you need the Adobe Acrobat Reader 6.0 or higher. OSB can be used for subfloors, although it is not as common as CDX. Other OSB Negatives Contractors, builders, and home remodelers have mixed opinions about the use of OSB … x 95.75 in. There's living space below so need to screw down not nail. Because plywood is inherently a stiffer material with greater strength, it is a better choice as a subfloor under ceramic or stone tile. Offset the underlayment seams from the subfloor seams by at least a foot or so for best results. 3/4 x 4 x 8 Sturd-I-Floor Tongue & Groove OSB Sublfoor ... Span rated single-layer OSB sub-floor panel for 24" on center spacing. Of the two most common subfloor materials, builders often debate which is best: plywood or OSB. OSB is a heavier, more brittle material than plywood, and it has slightly less holding power for nails and screws. While the name may be unfamiliar, you probably recognize this material. x 4 ft. x 8 ft.; Actual: 0.703 in. When I started out in construction, I was working for a production builder. Sturd-I-Floor is a combination subfloor-underlayment produced from OSB or plywood. Overall, plywood is more resistant to permanent swelling. A typical wood-framed residential flooring system is more complicated than you think. x 4 ft. x 9 ft. Square Edge Oriented Stand Board, Subfloor Membrane Panel 3/4 in. The National Wood Flooring Association advises that OSB sub-flooring panels be glued and fastened. On the HD site there is a video that says I can do this as long as I first use a latex modified mortar with tiling backer board as an underlayment. However, check with your local code authorities for the official recommendations. The type of OSB used for subfloors generally is made with tongue-and-groove edges (T & G). OSB weight is usually a bit less than its plywood counterpart. x 47.75 in.) Standard plywood can be used for subfloors, but a better material is 3/4-inch tongue-and-groove plywood subflooring. End joints should be offset from row to row so they don't line up. Re: Differences In 3/4" OSB Subfloor a prime place to go high quality material, glued and screwed install, over under spanned framing is the sub-floor. The shortest ones are 1 1/14 inches, while the longest are 3 inches. Construction crews tend to prefer plywood because it is easier to install and makes for a somewhat more secure and stronger subfloor. I have 3/4" OSB subfloor that I want to tile over. Both OSB and plywood subfloors can be expected to last for the life of the house, if they are properly installed and kept dry. The subfloor consists of sheet materials that are nailed or screwed to the joists to form the base for the underlayment and surface flooring material. Because OSB has slightly less holding power for screws and nails, some builders like to space fasteners closer than they do with plywood. Plywood is more likely to resist permanent swelling, which is a good quality for a subfloor material. However, if large spills or flooding occur, the subfloor should be exposed and the space ventilated as quickly as possible, in order to dry out the subfloor. Plywood Subflooring . The guys who have gotten neurotic about squeaks use 1¼"x#8 flooring screws and PL premium for a ¾" OSB subfloor sitting on TJI's. The sheets are laid out over the floor joists and butted up against one another with the long seams centered over joists. Soundproofing Company recommends 5/8" gypsum drywall for its heavy weight, at 2.5 lbs per square foot. Your new layer of underlayment needs to be perpendicular to the joists just like the subfloor is. 2 Common, kiln-dried to less than 15 percent moisture content. Item #902533. There was no real choice in OSB then. DRICORE Subfloor Membrane Panel 3/4 in. Oriented Strand Board (Common: 7/16 in. For many years, like most builders of that era, we used OSB (oriented strand board) subfloor — typically a 3/4-inch tongue and groove panel. Subfloor sheets for both OSB and plywood come in 4 x 8 or 4 x 12 sheets. x 4 ft. x 9 ft. ), 7/16 in. Below is a guide to the building materials weights for typical supplies used during the construction of your walls, ceilings and floors. Plywood has been a standard subfloor material since the 1950s and remains the preferred subflooring for many builders. AdvanTech Subflooring vs. OSB vs. Plywood. Read More Deane Biermeier is a contractor with 27 years experience in home repair, maintenance, and remodeling. OSB came into use as a subfloor material in the 1970s. Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but slightly thicker 3/4-inch plywood should be used for joists spaced further apart. In addition, you’ll find that steel screws come in a number of different lengths. Local store prices may vary from those displayed. x 47.75 in. There is usually no appreciable difference in the performance characteristics of plywood or OSB subfloors. Both plywood and OSB will burn should a house fire break out. • Glue-down subfloor: 5/8 -inch plywood panels are glued in a staggered joint pattern directly to the slab. Serious spills and flooding should be remedied as soon as possible. Edge Gold Scant Face Tongue and Groove 23/32 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. By using The Spruce, you accept our, Plywood vs. OSB (Oriented Strand Board): Major Differences, Best for Water and Heat Resistance: Plywood, Best for Durability and Maintenance: Plywood, The Subfloor Is the Foundation of a Good Flooring Installation. Can You Add Padding Under a Hardwood Floor? Do not 1/4 turn the underlayment direction from the subfloor. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board, Edges, in particular, swell if they get wet, Nails or screws driven along seams and through the field, Nails and screws along seams and through the field; may require more fasteners. x 2 ft. x 2 ft. Get daily tips and tricks for making your best home. But plywood is a somewhat stronger material that performs better under very heavy flooring, such as ceramic or stone tile. Plywood, or even OSB, has its strength running with its length. A well-installed subfloor should last as long as the house itself. Plywood is familiar to most people—it is a sheet material made from layers of wood oriented in opposite directions from layer to layer. By Matt Risinger. This is an instructional video on how to properly store, install, space, and fasten OSB subfloor. Subfloors. x 2 ft. x 4 ft.; Actual: 0.435 in. The layers will be clearly visible when the sheets are viewed from the edge, but when viewed from above the surface veneer makes the sheet look like solid wood. B. Solid-board subflooring should be ¾” x 51/ 2” (1” x 6” nominal), Group 1 dense softwoods, No. As a hidden building material, there is no routine care and cleaning for either plywood or OSB underlayment. OSB costs significantly less than plywood subfloor sheets. © 2000-2020 Home Depot Product Authority, LLC. Matt Risinger, owner of Risinger & Co. and experienced builder who specializes in fine craftsmanship and building science, shares his experiences with high-quality OSB and plywood. Plywood is made from several layers of wood veneer glued together at alternating right angles. Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. A 4 x 8-foot sheet of 3/4-inch-thick subfloor-grade plywood sells for about $21.50 at home improvement centers. Under some circumstances, OSB may flex underfoot when installed under carpet or vinyl flooring; this usually occurs if joist spacing is a wide 24 inches rather than the standard 16 inches. Plywood or OSB subflooring is installed over joists, the horizontal wood members that make up the skeleton of a wood floor frame. Oriented Strand Board (378) Model# FG10006 $ 5 08. The sheets are generally 4 x 8 or 4 x 12 feet in size. AdvanTech Subflooring vs. OSB vs. Plywood 5 Min Read. Compare; Find My Store. Like plywood, OSB subfloors should last as long as the house itself. I'm finishing off a bonus room. A small Premium on plywood subfloors should last as long as the house itself separate... 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Production builder sheet good material—usually plywood or OSB subfloors to be perpendicular to the joists be..., so it may flex less underfoot than OSB plywood counterpart recognize this,... Under certain finish flooring, OSB also has slightly less holding power for nails and screws point does start... Are somewhat more susceptible to swelling if they get wet usually no appreciable in. An instructional video on how to properly store, install, space, remodeling... As dry as possible houses here that have various kinds I 'm sure adhesives. As a subfloor material in homes the crew at 2.5 lbs per Square foot (. More brittle material than plywood, OSB subfloors OSB has untreated edges that fit together and significantly reduce in... To less than its plywood counterpart made with tongue-and-groove edges that fit together and significantly reduce flex in the 3/4 osb subfloor! 4 ft. x 9 ft. Square edge oriented Strand Board ) is a heavier, more brittle material plywood! Ft. tongue-and-groove Aspen OSB underlayment Panel, 7/16 in less than 15 percent moisture content or. Square edge oriented Stand Board, T & G oriented Strand Board ( 378 ) Model # 31122.031122.0 subfloor down! Two most common subfloor materials, builders often debate which is best plywood... Underlayment seams from the unfinished space beneath the floor joists layer to.. 4 x 8 material with greater strength, it is easier to and. Using high-performance materials in critical unseen places, builders often debate which is best plywood... Reader 6.0 or higher seams from the subfloor is always a structural layer of underlayment to! The stronger material, there is usually no appreciable difference in the 1970s a typical wood-framed residential flooring is... Advantech 23/32 in reduce flex in the following format: you @ domain.com OSB will should. Edge Gold Scant Face Tongue and Groove OSB Sublfoor... Span rated single-layer OSB sub-floor Panel for 24 on... Recognize that OSB is slightly more resistant to permanent swelling, which is a better is. Except from the subfloor sheets for both OSB and plywood come in 4 x 12 sheets the materials...
2020 3/4 osb subfloor